File 0001-oggz-comment-Set-last-header-flag-for-vorbis-comment.patch of Package liboggz

From c01b93c23654f6942f391e84e297af6f3dfb9df7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Stefan=20Br=C3=BCns?= <stefan.bruens@rwth-aachen.de>
Date: Mon, 12 Jan 2026 17:32:36 +0100
Subject: [PATCH] oggz-comment: Set last-header flag for vorbis comment in flac
 when needed

The comment may be trailed by other headers like padding or picture,
but if it is the last one/only header the appropriate flag has to be set.

See liboggz#18.
---
 src/tools/oggz-comment.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/tools/oggz-comment.c b/src/tools/oggz-comment.c
index 2ac4edd..572cea6 100644
--- a/src/tools/oggz-comment.c
+++ b/src/tools/oggz-comment.c
@@ -272,6 +272,7 @@ read_packet (OGGZ * oggz, oggz_packet * zp, long serialno, void * user_data)
   const char * vendor;
   int flush, copy_op_flush = 0;
   int ret;
+  int flac_last_header = 0;
 
 #ifdef USE_FLUSH_NEXT
   flush = flush_next;
@@ -302,6 +303,11 @@ read_packet (OGGZ * oggz, oggz_packet * zp, long serialno, void * user_data)
       copy_op_flush = flush;
       flush = 1;
     }
+    /* For FLAC, the last header packet has to be flagged */
+    if (oggz_stream_get_content (oggz, serialno) == OGGZ_CONTENT_FLAC &&
+        oggz_stream_get_numheaders (oggz, serialno) == 1) {
+        flac_last_header = 1;
+    }
 
     vendor = oggz_comment_get_vendor (ocdata->reader, serialno);
 
@@ -316,7 +322,7 @@ read_packet (OGGZ * oggz, oggz_packet * zp, long serialno, void * user_data)
     oggz_comment_set_vendor (ocdata->writer, serialno, vendor);
 
     /* Generate the replacement comments packet */
-    op = oggz_comments_generate (ocdata->writer, serialno, 0);
+    op = oggz_comments_generate (ocdata->writer, serialno, flac_last_header);
   }
 
   /* Feed the packet into the writer */
-- 
2.52.0